<template>
  <div>
    <div style="margin-top: 30px;text-align:center">
      <el-steps :active="active" finish-status="success" align-center>
        <el-step title="验证电子邮件"></el-step>
        <el-step title="重新设定密码"></el-step>
      </el-steps>

      <div style="margin:0 20px;" v-if="active===0">
        <div style="margin-top: 80px;">
          <div style="font-size: 25px;font-weight: bold">重置密码</div>
          <div style="font-size: 14px;color: gray">请输入要重置密码的电子邮件</div>
        </div>
        <div style="margin-top: 50px">
          <el-form :model="form" :rules="rule" ref="formRef">
            <el-form-item prop="email">
              <el-input v-model="form.email"  type="email" placeholder="电子邮件地址">
                <template #prefix>
                  <el-icon><Message/></el-icon>
                </template>
              </el-input>
            </el-form-item>
            <el-row :gutter="10" style="width: 100%;">
              <el-col :span="17">
                <el-input v-model="form.code" maxlength="6" type="text" placeholder="请输入验证码">
                  <template #prefix>
                    <el-icon><EditPen/></el-icon>
                  </template>
                </el-input>
              </el-col>
              <el-col :span="5" style="text-align: right">
                <el-button :disabled="!isEmailValid || codeTime>0" type="success" @click="askCode">
                  {{codeTime>0?`请稍后${codeTime}秒`:'获取验证码'}}</el-button>
              </el-col>
            </el-row>
          </el-form>
        </div>
        <div style="margin-top: 80px">
          <el-button @click="confirmReset" style="width: 270px" type="warning" plain>开始重置密码</el-button>
        </div>
      </div>
      <div style="margin:0 20px;" v-if="active===1">
        <div style="margin-top: 80px;">
          <div style="font-size: 25px;font-weight: bold">重置密码</div>
          <div style="font-size: 14px;color: gray">请填写你的新密码，务必牢记，防止丢失</div>
        </div>
        <div style="margin-top: 50px">
          <el-form :model="form" :rules="rule" ref="formRef">
            <el-form-item prop="password">
              <el-input v-model="form.password" maxlength="20" type="password" placeholder="密码">
                <template #prefix>
                  <el-icon><Lock/></el-icon>
                </template>
              </el-input>
            </el-form-item>
            <el-form-item prop="password_repeat">
              <el-input v-model="form.password_repeat" maxlength="20" type="password" placeholder="重复密码">
                <template #prefix>
                  <el-icon><Lock/></el-icon>
                </template>
              </el-input>
            </el-form-item>
          </el-form>

        </div>
        <div style="margin-top: 80px">
          <el-button @click="doReset" style="width: 270px" type="danger" plain>立即重置密码</el-button>
        </div>
      </div>

    </div>
  </div>



</template>

<script setup>
import {ref, reactive, computed} from "vue"
import {EditPen, Lock, Message} from "@element-plus/icons-vue";
import {ElIcon, ElMessage} from "element-plus";
import {get, post} from "@/net/index.js";
import router from "@/router/index.js";

const active = ref(0)
const codeTime = ref(0)
const formRef=ref();

const form = reactive({
  email: "",
  code:"",
  password:"",
  password_repeat:""
})

const validatePassword = (rule, value, callback) => {
  if (value==='')
    callback(new Error("请再次输入密码"))
  else if (value!==form.password)
    callback(new Error("两次输入的密码不一致"))
  else
    callback()
}

const rule = {
  username: [
    {required:true,message:'请输入用户名',trigger: ['blur','change']}
  ],
  password: [
    {required:true,message:'请输入密码',trigger:'blur'},
    {min:6,max:20,message: '密码查高度必须在6-20个字符之间',trigger: ['blur','change']},
  ],
  password_repeat: [
    {validator:validatePassword,trigger: ['blur','change']}
  ],
  email: [
    {required:true,message:'请输入邮件地址',trigger:'blur'},
    {type:'email',max:20,message: '请输入合法的电子邮件地址',trigger: ['blur','change']},
  ],
  code: [
    {required:true,message:'请输入获取的验证码',trigger:'blur'},
  ]
}

function askCode(){
  if(isEmailValid){
    codeTime.value=60
    get(`/api/auth/ask-code?email=${form.email}&type=register`,()=>{
      ElMessage.success(`验证码已发送到邮箱：${form.email},请注意查收`)
      setInterval(()=>codeTime.value--,1000)
    },(message)=>{
      ElMessage.warning(message)
      codeTime.value=0
    })
  }else {
    ElMessage.warning("请输入正确的电子邮件！")
  }
}


const isEmailValid=computed(()=>/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/
    .test(form.email))

function confirmReset(){
  formRef.value.validate(valid => {
    if (valid) {
      post(`/api/auth/reset-confirm`,{
        email:form.email,
        code:form.code,
      },()=>{active.value++})
    }
  })
}

function doReset(){
  formRef.value.validate(valid => {
    if (valid) {
      post(`/api/auth/reset-password`,{
        ...form,
      },()=>{
        ElMessage.success("密码重置成功，请重新登录")
        router.push("/")
      })
    }
  })
}
</script>

<style lang="scss" scoped>

</style>